"""
Case Type   : 多节点写入
Case Name   : 备机在事务中执行INSERT/DELETE/UPDATE语句及DDL语句并回滚
Create At   : 2023/1/9
Owner       : @li-xin12345
Description :
    1.修改enable_remote_execute参数值为on
    2.备机在事务中执行DDL语句并回滚
    3.备机在事务中执行INSERT/DELETE/UPDATE语句并回滚
    4.查看日志打印
    5.清理环境，恢复参数
Expect      :
    1.修改成功
    2.DDL语句执行失败
    3.执行成功
    4.日志记录建立连接、转发给主机、接受执行结果等libpqsw信息
    5.成功
History     :
    Modified by @li-xin12345 2023/3/15:研发代码变更，libpqsw日志打印增加线程号，优化断言以适配新代码
    Modified by @li-xin12345 2023/3/21:优化断言，规避其他用例的影响
    Modified by @kyeleze 2023/7/5:研发代码变更，日志打印信息更改，优化断言以适配新代码
"""
import os
import time
import unittest
from yat.test import Node
from yat.test import macro
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant

PrimarySh = CommonSH('PrimaryDbUser')


@unittest.skipIf(1 == PrimarySh.get_node_num(),
                 'Single node, and subsequent codes are not executed.')
class MultiNodeWrite(unittest.TestCase):
    def setUp(self):
        self.logger = Logger()
        self.logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.standby_node = Node('Standby1DbUser')
        self.standby_sh = CommonSH('Standby1DbUser')
        self.constant = Constant()
        self.common = Common('Standby1DbUser')
        self.table_name = 't_multi_node_write_0031'
        self.new_log_path = os.path.join(macro.PG_LOG_PATH,
                                         'pg_log_multi_node_write_case0031')
        self.enable_remote_execute = 'enable_remote_execute'
        self.log_statement = 'log_statement'
        self.log_directory = 'log_directory'
        self.remote_execute_default = self.common.show_param(
            self.enable_remote_execute)
        self.log_statement_default = self.common.show_param(self.log_statement)
        self.log_dir_default = self.common.show_param(self.log_directory)
        shell_cmd = f"rm -rf {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.assertEquals('', shell_msg, '删除目录失败')

    def test_multi_node_write(self):
        step1 = "-----step1:修改enable_remote_execute参数值为on;expect:修改成功-----"
        self.logger.info(step1)
        result = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}=on')
        self.assertTrue(result, '执行失败' + step1)
        restart_res = self.standby_sh.restart_db_cluster()
        self.assertTrue(restart_res, '执行失败' + step1)
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        self.assertEquals(show_remote_execute, 'on', '执行失败' + step1)
        result = self.standby_sh.execute_gsguc('reload',
                                               self.constant.GSGUC_SUCCESS_MSG,
                                               f'{self.log_statement}=all')
        self.assertTrue(result, '执行失败' + step1)
        result = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.new_log_path}\'', single=True)
        self.assertTrue(result, '执行失败' + step1)
        show_log_statement = self.common.show_param(self.log_statement)
        self.assertEquals(show_log_statement, 'all', '执行失败' + step1)
        show_log_directory = self.common.show_param(self.log_directory)
        self.assertEquals(show_log_directory, self.new_log_path, '执行失败' + step1)

        step2 = "-----step2:备机在事务中执行DDL语句并回滚" \
                "expect:DDL语句执行失败-----"
        self.logger.info(step2)
        sql_cmd = f'''start transaction;
            drop table if exists {self.table_name};
            create table {self.table_name}(id int,name varchar(20));
            rollback;'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.START_TRANSACTION_SUCCESS_MSG,
                      sql_msg, '执行失败' + step2)
        self.assertIn("ERROR:  The multi-write feature doesn't support " \
                      "DDL within transaction", sql_msg,
                      '执行失败' + step2)
        self.assertIn(self.constant.ROLLBACK_MSG, sql_msg, '执行失败' + step2)

        step3 = "----step3:备机在事务中执行INSERT/DELETE/UPDATE语句并回滚" \
                "expect:执行成功"
        self.logger.info(step3)
        sql_cmd = f'''drop table if exists {self.table_name};
            create table {self.table_name}(id int,name varchar(20));'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.TABLE_DROP_SUCCESS,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS,
                      sql_msg, '执行失败' + step3)
        time.sleep(10)
        sql_cmd = f'''start transaction;
            insert into {self.table_name} values(generate_series(1,10), 'test');
            update {self.table_name} set name='software' where id = 3;
            delete from {self.table_name} where id=5;
            rollback;'''
        sql_msg = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_msg)
        self.assertIn(self.constant.START_TRANSACTION_SUCCESS_MSG,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.constant.UPDATE_SUCCESS_MSG,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.constant.DELETE_SUCCESS_MSG,
                      sql_msg, '执行失败' + step3)
        self.assertIn(self.constant.ROLLBACK_MSG, sql_msg, '执行失败' + step3)

        step4 = "-----step4:查看日志打印;expect:日志记录建立连接、" \
                "转发给主机、接受执行结果等libpqsw信息-----"        
        self.logger.info(step4)
        shell_cmd = f"ls -t {self.new_log_path}"
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        logfile = os.path.join(self.new_log_path, shell_msg.split()[-1])
        self.logger.info(logfile)
        shell_cmd = f"cat {logfile} "
        self.logger.info(shell_cmd)
        shell_msg = self.common.get_sh_result(self.standby_node, shell_cmd)
        self.logger.info(shell_msg)
        self.assertIn('transaction status change',
                      shell_msg, '执行失败:' + step4)
        self.assertIn('Connecting to remote server',
                      shell_msg, '执行失败:' + step4)
        self.assertIn(f'LOG:  libpqsw', shell_msg, '执行失败:' + step4)

    def tearDown(self):
        step5 = "-----step5:清理环境，恢复参数;expect:成功-----"
        self.logger.info(step5)
        sql_cmd = f'drop table {self.table_name};'
        sql_res = self.standby_sh.execut_db_sql(sql_cmd)
        self.logger.info(sql_res)
        result1 = self.standby_sh.execute_gsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.enable_remote_execute}={self.remote_execute_default}')
        restart_res = self.standby_sh.restart_db_cluster()
        show_remote_execute = self.common.show_param(self.enable_remote_execute)
        result2 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_statement}={self.log_statement_default}')
        result3 = self.standby_sh.execute_gsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            f'{self.log_directory}=\'{self.log_dir_default}\'', single=True)
        show_log_statement = self.common.show_param(self.log_statement)
        show_log_directory = self.common.show_param(self.log_directory)
        self.logger.info("-----断言teardown-----")
        self.assertIn(self.constant.DROP_TABLE_SUCCESS, sql_res,
                      '执行失败' + step5)
        self.assertTrue(result1, '执行失败' + step5)
        self.assertTrue(restart_res, '执行失败' + step5)
        self.assertEquals(show_remote_execute, self.remote_execute_default,
                          '执行失败' + step5)
        self.assertTrue(result2, '执行失败' + step5)
        self.assertTrue(result3, '执行失败' + step5)
        self.assertEquals(show_log_statement, self.log_statement_default,
                          '执行失败' + step5)
        self.assertEquals(show_log_directory, self.log_dir_default,
                          '执行失败' + step5)
        self.logger.info(f"-----{os.path.basename(__file__)} end-----")

